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以粉煤灰合成二氧化硅为唯一硅源和铝源合成ZSM-5沸石

ZSM-5 Zeolite Synthesis from Coal Fly Ash Synthesised Silica: Sole Silica & Alumina Source.

作者信息

Manyepedza Thapelo, Gaolefufa Emmanuel V, Beas Isaac N, Maubane-Nkadimeng Manoko, Kabomo Moses T

机构信息

Department of Chemistry, University of Botswana, Botswana Private bag UB, Gaborone, 00704, Botswana.

Department of Natural resources and Materials, Botswana Institute for Technology Research and Innovation, Maranyane House, Plot 50654 Machel Drive, Gaborone, Botswana.

出版信息

ChemistryOpen. 2025 May;14(5):e202400314. doi: 10.1002/open.202400314. Epub 2025 Jan 28.

DOI:10.1002/open.202400314
PMID:39876658
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12075103/
Abstract

This study explores the synthesis of ZSM-5 zeolite using high-purity mesoporous silica exclusively derived from coal fly ash (CFA), eliminating the need for additional silica or alumina sources. Traditional ZSM-5 synthesis relies on costly and environmentally harmful pure chemicals, whereas this approach utilizes CFA, an industrial byproduct, addressing both cost and sustainability concerns. The synthesized ZSM-5 zeolite demonstrates exceptional purity, with a surface area of 455.24 m/g, and exhibits unique structural properties, confirmed through XRD, SEM, TEM, FTIR, TGA, and BET analyses. This method highlights the potential of CFA-derived silica as a sustainable feedstock for zeolite production, promoting both environmental sustainability and cost-effective industrial applications in catalysis, adsorption, and separation processes.

摘要

本研究探索了仅使用源自粉煤灰（CFA）的高纯度介孔二氧化硅来合成ZSM-5沸石，无需额外的硅源或铝源。传统的ZSM-5合成依赖于昂贵且对环境有害的纯化学品，而这种方法利用工业副产品CFA，解决了成本和可持续性问题。合成的ZSM-5沸石具有出色的纯度，表面积为455.24 m²/g，并展现出独特的结构特性，这通过XRD、SEM、TEM、FTIR、TGA和BET分析得以证实。该方法突出了源自CFA的二氧化硅作为沸石生产可持续原料的潜力，促进了环境可持续性以及在催化、吸附和分离过程中的经济高效工业应用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/721b505c4867/OPEN-14-e202400314-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/ebba75b62392/OPEN-14-e202400314-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/171952061d69/OPEN-14-e202400314-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/532e6c32d3eb/OPEN-14-e202400314-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/b94abfa181c5/OPEN-14-e202400314-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/738bee77e4d1/OPEN-14-e202400314-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/721b505c4867/OPEN-14-e202400314-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/ebba75b62392/OPEN-14-e202400314-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/171952061d69/OPEN-14-e202400314-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/532e6c32d3eb/OPEN-14-e202400314-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/b94abfa181c5/OPEN-14-e202400314-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/738bee77e4d1/OPEN-14-e202400314-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e6e8/12075103/721b505c4867/OPEN-14-e202400314-g004.jpg

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本文引用的文献

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Computational simulation-driven discovery of novel zeolite-like carbon materials as seawater desalination membranes.基于计算模拟的新型沸石类碳材料在海水淡化膜中应用的发现。
Phys Chem Chem Phys. 2023 Jun 28;25(25):16908-16920. doi: 10.1039/d3cp00787a.
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Application of zeolite based nanocomposites for wastewater remediation: Evaluating newer and environmentally benign approaches.
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Environ Res. 2023 Aug 15;231(Pt 1):116073. doi: 10.1016/j.envres.2023.116073. Epub 2023 May 8.
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Predicting Structural Properties of Pure Silica Zeolites Using Deep Neural Network Potentials.使用深度神经网络势预测纯硅沸石的结构性质
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Understanding formation thermodynamics of structurally diverse zeolite oligomers with first principles calculations.运用第一性原理计算理解结构多样的沸石低聚物的形成热力学。
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